What do you do when the users in your persona are relatively unavailable to you for testing out elements of a website? Is there existing research out there for the preferences of common user groups, such as CEOs or bank CFOs?
What often happens to me, is that I'm in a meeting and someone asks "What colors appeal most to CEOs?" or "What navigation will work for busy doctors?"
The problem is a) I don't know enough about this group prior to getting to wireframes and the initial solutions I need to propose and b) I don't know how available these group ever will be to me.
I have created personas based on interviews with the client, looking at some stats on the site, etc. but to be perfectly honest, I don't ever see a group of CEOs or surgeons making themselves available to me so that I can bounce color and navigation ideas off of them.
But everyone in the room is turning to me expecting an answer, as though I am well versed in the preferences of CEOs and that they've been documented... somewhere.
So as a freelancer and team of one, how do I get at this information? Especially in the early stages so that I can at least create a well-thought out wireframe with some reasoning behind my decisions. I've created the user persona, now what?